20020+0257 HEI 818

Coord 2000	20020+0257		Discov num	HEI 818		Comp			Coord arcsec 2000	20 02 00.21 +02 56 31.6
Date first	1990		Date last	1994		Obs	2
Pa first	27		Pa last	28		P.A. Now (θ)	28°
Sep first	1.4		Sep last	1.3		Sep. Now (ρ)	1.3"
Mag pri	10.80		Mag sec	11.40		delta mag (ΔM)	0.6		Spectral class	A3 (white)
Pri motion ra	-008		Sec motion ra
Pri motion dec	-011		Sec motion dec
Notes

Nature of this double is uncertain.

Precise pa	27.8		Precise sep	1.29		Constellation	Aquila		Tycho2	0498-02042-1
HD	357703		last precise pa	27.8		last precise sep	1.29

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20020+0257	HEI 818		1994	2	28	1.3	10.80	11.40			200200.21+025631.6

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